Home / 19,619.38-27,073.86-11,121.38

Finding the Fourth Proportional to 19,619.38, 27,073.86 and 11,121.38

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Solution

The fourth proportional to 19,619.38, 27,073.86 and 11,121.38 is: 15,347.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,619.38 : 27,073.86 = 11,121.38 : x
  2. Step 2: Convert to fraction form
    19,619.38/27,073.86 = 11,121.38/x
  3. Step 3: Cross multiply
    19,619.38x = 27,073.86 × 11,121.38
  4. Step 4: Simplify right side
    19,619.38x = 301,098,549.76
  5. Step 5: Solve for x
    x = 301,098,549.76/19,619.38
  6. Step 6: Final answer
    x = 15,347.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.